diff options
| author | Waiman Long <longman@redhat.com> | 2020-02-06 10:24:07 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-02-11 13:10:51 +0100 |
| commit | 797b82eb906eeba24dcd6e9ab92faef01fc684cb (patch) | |
| tree | b27a8f62357cc70217b633ec3fde24d4f492ddf2 /kernel/locking/lockdep.c | |
| parent | 836bd74b5957779171c9648e9e29145fc089fffe (diff) | |
locking/lockdep: Track number of zapped lock chains
Add a new counter nr_zapped_lock_chains to track the number lock chains
that have been removed.
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200206152408.24165-6-longman@redhat.com
Diffstat (limited to 'kernel/locking/lockdep.c')
| -rw-r--r-- | kernel/locking/lockdep.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index ef2a6432dd10..a63976c75253 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -2626,6 +2626,7 @@ out_bug: struct lock_chain lock_chains[MAX_LOCKDEP_CHAINS]; static DECLARE_BITMAP(lock_chains_in_use, MAX_LOCKDEP_CHAINS); static u16 chain_hlocks[MAX_LOCKDEP_CHAIN_HLOCKS]; +unsigned long nr_zapped_lock_chains; unsigned int nr_chain_hlocks; struct lock_class *lock_chain_get_class(struct lock_chain *chain, int i) @@ -4797,6 +4798,7 @@ free_lock_chain: */ hlist_del_rcu(&chain->entry); __set_bit(chain - lock_chains, pf->lock_chains_being_freed); + nr_zapped_lock_chains++; #endif } |